I am going as a date with a guy who is in his best friends wedding,
who I have never met.  What kind of things can I do, conversation
questions can I ask to make myself feel more comfortable going to the
wedding and not knowing very many people and knowing at times that I
will be alone.  THANK YOU?

"Let me ask you this," you say to him. "If we work from the assumption
John Calvin was wrong, does that make Charles and John Wesley-- who
established Methodism partly as a rejection of Calvinstic princiles--
heretical? For extra credit, identify the halogens and spell them
correctly."

LOL Mark...

In all seriousness, the best thing to do is smile, smile, smile and
introduce yourself as "so and so's" date to whoever is close by.

Compliment someone on ther dress, ask if they have pets, hobbies, etc
and smile, smile smile :)

Steph53

Ask them if they are related to the bride or the groom or how they know them.

It's old advice, but it's been around a long time because it works.
Don't talk about yourself unless asked, and then minimize your
personal comments. Rather, ask people questions about what they do,
like, think, where they live, work, their plans/dreams, etc. and then
talk about THEIR interests - with interest. Even if your comments are
confined to "Really?" "You don't say!" "Wow" "How interesting!"
"Uh-huh." That's amazing." they'll think you are the finest
conversationalist ever to walk the earth. Really. Try it - it works.
Good luck, and have fun. :-)

So true, Byrd. Nearly 25 years ago, I volunteered as editor for a
local Mensa group. A woman friend read some of the newsletters, and
said she wanted to go to a meeting.  I took her, and later she said
she felt dumb, because everything was so interesting that others said,
but she couldn't think of a thing to say to "all those smart people."

Hee, hee. Later, the others said she was such a great listener, and
urged me to bring her to more meetings. They loved her!